Electric warp stop-motion.



J. HANCQ. ELECTRIC WARP STOP MOTION.

I Patented Apr. 18, 1916.

APPLICATION FILED MAR- 27.1915.

3 SHEETS-SHEET 1.

mmwn ammo;

J. HANCQ.

ELECTRIC WARP STOP MOTION.

APPLICATION man MAR. 27. 1915.

Patented Apr. 18, 1916.

3 SHEETS-SHEET 2.

J. HANCQ.

ELECTRIC WARP STOP MOTION.

APPLICATION FILED MAR. 27, 1915.

Patented Apr. 18, 1916.

3 SHEETS-SHEET 3.

LWQIMI JOHN HANCQ, F JABTESTO'W'N, NEW YORK.

ELECTRIC WARP STOP-MOTIUN.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application fiieti afar-ch 27', 1915. Serial No. 17,355.

1" 0 all whom it may concern:

Be it known that 1, JOHN HANCQ, a citizen of the l nited States.residing at the city of Jamestown, in the county of Chautauqua and Stateof New York, have invented certain new and useful Improvements inElectric lVarp Stop-Motions, of which the following, taken in connectionwith the accompanying drawings, is a specification.

The invention relates to electric warp controlling devices for looms andis n improve ment on the warp stop motion shown in my Letters PatentNos. 1,065,938, July 1st, 1913, and 1,071,313, August 26, 1913; and theobject of the present improvement is to provide a heddle frame havingimproved channel flanges lengthwise of the inner edges of the top andbottom rails providing a simply constructed hooked heddle and means foradmitting said hooked heddle to said channel flanges and also to providea novel elec tric circuit breaker to make and break the electric circuitas the heddle frame rises and falls, and also to connect said heddlemechanism with an electric knock-oil for the loom; and the inventionconsists of the novel features and combinations hereinafter set forthand claimed. The stopping mechanism proper shown in Figs. 1, 8, 9, 10and 11 and described herein is claimed in my companion applicationSerial No. 17,356 filed March 27, 1915.

In the drawings, Figure 1 is an end elevation of the loom with theelectric warp stop motion and knock-off mechanism attached thereto, aportion of the end frame being broken away to show the position of theparts. Fig. 2 is an elevation of the heddle frame with the heddles inposition, certain portions being broken away to shorten the frame andshowing the electrical connection whereby the electric circuit isalternately made and broken with the rise and fall of the heddle framein the loom. Fig. 3. is a sectional view of the frame at line X X inFig. 2 showing the heddle as it is normally supported with unbrokenthreads, the heddle frame being at the lowest point of its travel; andFig. 1 is a similar View with the thread broken and the electricalcircuit closed by the heddle resting upon an electrically charged bar onthe uppercross rail of the frame. Fig. 5 is a lengthwise sectional viewof the circuit breaker or make and break bar of the electricalconnection supporting the heddle frame showing in ole tail theconstruction of the same. Fig. 6 is a perspective view of the end of thelower hooked flange and its attachment to the end of the frame whereby agate is formed for the admission of the heddles; and Fig. 7 is anelevation of the latch or gate bar. Fig. 8 is an elevation of theelectrical lmock-off mechanism for operating the stopping mechanism ofthe loom, the tripping mechanism being shown in normal position withunbroken threads; and Fig. 9 is a similar view showing the trippingaction of the magnet in operating the stopping mechanism of the loomwhena thread breaks; and Fig. 10 is a sectional view at line Y Y in Fig. 8showing atop plan view of the tripping mechanism and return actuatingcoil springs. Fig. .11 is a perspective view of the lower trippingplate, a portion. of the plate being broken away to show the magnetoperated ping mechanism is actuated when a thread breaks.

Like numerals of reference refer to corresponding parts in the severalviews.

The numeral 10 designates the loom upon which the heddle frame 11 issupported by means of a strap. 12 which passes over the rolls 13, one ofthe straps 12 being joined to the other and the single strap passingaround additional rolls to the bottom roll 14 and then passing to thehooks 15 in the lower edge of the heddle frame 11.

The heddle frame 11 comprises the top cross rail 16 and bottom rail 17and connective end pieces 18. The heddle frame 11 is preferably made ofwood or some other equally good insulating material. The top and bottomcross rails 16 and 17 have the sheet metal single hook flanges 19 and 20inset lengthwise in their opposite inner edges. Said opposite inneredges 21 and 22 are formed at opposite angles and the hooked lengthwiseflanges have a turned lengthwise shoulder at the same angle so as tobrace firmly against the beveled surface of the tripping dog by means ofwhich the stopwood frame and extending out preferably to about the edgeof the same and then continuing inward in the required book. Thisarrangement provides a self-cleaning opening for the lower flange, sinceall lint and dust will fall out of the same as the frames pass up anddown and are thereby shaken. All that is necessary also to clean theupper hooked flange 19 is to turn the frame 11 upyet is so the heddlesas they slip back and forth upon the flanges 19 and 20.

. The heddle 24 is composed of a thinsheet steel strip having oppositelyhooked ends 25 and 26 which fit around the hooked flanges 19 and 20 soas to allow a suflicient amount of play to make and break contact withthe top flange 19. 'A thread eye 27 is provided about midway of thelength of the heddle'formed by a lengthwise cut and the oppositeportions of the strip being bent in v vided at one end of oppositedirections so that as the heddle stands edgewise toward the directionfrom which the thread extends an eye is easily formed by sidewise bendsand the entire heddle may be struck out by meansof suitable dies.

a The upper flange 19 is provided with a contact strip 28. The edge ofthe flange is given a double return bend to form a second groove 29within which the contact strip 28 is embedded, in insulation so as tocompletely disconnect the strip 28 from the flange 19. This simpleconstruction permits its formationby means of suitable dies and holdsthe contact strip 28 in the exact positioii desired for contacting theheddles 24. The lower flange 20 is preferably turned upon-itself to forma closed tubular opening 30.. The turning ,of the'edge to form a tube 30forms arounded surface which is easy to slip the heddle 24 upon. Inorder to enter the heddles, a gate or latch is proshortened to provide aspace 31 between the end of the flange 20 and the frame end piece 18. Aslot is provided through the end piece.

18 through which a latch piece 32 is inserted which latch piece hasanopen ended slot 33 providing a small tongue 34 which is insertible inthe tubular opening 30 in the end of the flange 20. A spring latch 35 isprovided on the outer edge of the end piece 18, the turned end of whichinserts through a hole 36 in the latch piece 32 when the latch piece isin place, thereby securing said latch piece in place and preventing theescape of any of the heddles while theframes are traveling upward anddownward in the loom.

Separate electrical connection is made to the end of the bar 28 and tothe flange 19 in the following manner: A supporting hook 37 is providedin the upper cross bar 16 of the heddle frame which abuts against theupper edge of the flange 19, thereby making an electrical contact on thesame, while the the flange 20 which is attached to each of thesupporting hooks 37 and 38 at one end and to the straps 12 at the other.The contact bars 40 each comprises a bar of insulating material with alengthwise opening therethrough to receive the channel shaped sheetmetal strip 41. The. hooks 37 and 38 are inserted through holes in strip41 atthe lower end. At the upper end of each a hook 42 is pivotallysecured for attaching to the strap 12. A spring contact wire- 43 isattached within the channel strip 41 by boiling around a post 44 at oneside. This gives the lower end 45 of the contact wire 43 a springpressure on the end of the hook 37 or 38 holding said hook firmly in thechannel strip 41 and providing a constant contact therewith. The end 46of the contact wire 43 extends out through aslot in the side of the bar40 and thence inwardly at right angles to engage against a stopping post47 with spring pressure. A pair of pins 48 are supported on a downwardlyprojecting bar 49 on the loom frame 10 to provide a pin 48 each side ofeach of the contact bars 40, as shown in Fig. 2, so that 1 as the heddleframe passes down in the loom the outwardly bent portion of the contactwire 43 will be pressed into firm contact with one of the pins 48 andwill continue in contact until the heddle frame passes up and thecontact wires 43 are drawn out of touch. with the pins 48.

The electrical connection consists of a wire 50 to the pins 48 of thecontact bar 40 engaging the hook 37, the wire 50 leading to a battery52. A second wire 51 connects to the pins 48 each side of the contactbar 40 attached to the hook 38, which hook is connected by wire to thecontact bar 28.

It is apparent that as the heddle frames pass up and down the heddles 24will be drawn up out of contact when the frame is in the loweredposition but when in the raised position the heddles 24 will drop uponthe contact bar 28. It is accordingly necessary that when in the raisedposition said contact bar should be disconnected, that is, the circuitshould be broken. This is accomplished by means of the contact bars 40,for it is apparent that when in the raised position, as shown in Fig. 2,the our rent is entirely disconnected. When in the lowered position, asshown in Fig. 3 the parts are in electrical contact but the heddlepleting the circuit to stop the loom.

hit

' 1,180, Mid

in order to eflectively operate the stopping mechanism of the loom anelectrical knock-0d mechanism is necessary. For this purpose I prefer myknock-ofi' mechanism as shown in Figs. 8, 9, 10 and 11, which knock-ofl'mechanism is included in the electrical circuit as shown in Fig. 1, bythe connecting wires and 51. Usually the loom has a vlever or crank 5awhich is attached to the end of the break rod 55. lhe end of the lever56 is extended to engage in the upturned end 57 of the slidably mountedtripping bar 58. The tripping bar 58 is supported by slidably extendingthrough a box 59. A second tripping bar 60 is slidably mounted in thebox 59 and extends therethrough over the bar 58 so as to slidably restthereon. The bar 80 is connected by a pitman 61 to a crank wheel. 62 onthe driving shaft 63 of the loom, so that when said shaft 63 is locatedthe tripping bar 60 is reciprocally moved backward and forward on thetripping bar 58. A wire 64 connects the battery 52 to a spring to on apost 66 in the box 59 which hasa spring end 67 which extends up to acontact plate 68. lhe contact plate 68 is connected by wire to a magnet69 supported in the box 59 below the tripping bar 58. Insulated pins 70and 71 are provided on bars58 and 60 to engage the spring end 6'? of thecontact wire, the pin 71 moving the spring end 67 away'from the contactplate 68 and then permitting it to spring back against the same.- A pin72 is provided in the box 59 to support a coil spring 73 which engages apin 74 on the tripping bar 58 to normally hold said tripping bar withthe pin 70 firmly pressed against the inner wall of the box 59 and atthe same time to hold the iever 5e in its normal position when the loomis running with unbroken threads, as

shown in Fig. 1. A dog 75 is pivotally at-- tached in a slot 76 in thetripping bar 58 near one end of said box so that the long end thereofnormally rests upon the wall of the end of the slot 76, so that said dog7 5 is normally out of the way of the reciprocating bar 60 as it movesbackward and forward making and breaking contact. The

. bar 60 has a notch 77 cut in the underside thereof to receive the longend of the dog 75. The short end of the dog 75 is made broad and flatand extends beneath the bar 58 to provide a contacting surface a spaceddistance from the top contact plate of the magnet 69 which magnet isconnected to the contact plate 68, the contact wire 67 being made tomake contact when the heddle frames are at the upper or lower limit oftheir travel, and to break contact when the frames are moving eitherupward or downward. The knock-ofl contact breaker is necessary to makeand break contact with greater rapidity than would be possible with thecontact bars 4:0. WVhen the thread breaks and the electrical circuit isclosed, the magnet 69 is instantly charged thereby drawing down upon theshort end of the dog 75 and turning the long end of the dog upward intothe path of the notch 77 in'the lower side of: the reciprocating bar 60.The movement of. the bar (30 is thereby communicated to the bar 58pushing out said bar 58 and operating the lever 54 and the stoppingmechanism for the loom attached thereto thereby almost instantlystopping the loom.

I claim as new: 1. In a device of the class described, a

heddle frame comprising upper and lower L cross bars and connective endpieces, the inner edges of said cross bars OQpOSll'iGly beveled,lengthwise hooked flanges inserted in the beveled inner edges of saidupper and lower cross bars and extending a spaced distance at the sameangle as said beveled edges to brace and clear said hooked flan s ofdirt, heddles having hooked ends to over said hooked flanges, thecentral portions of said hooked flanges connected out of line with saidheddles, a contact strip on the upper hooked flange and insulatedtherefrom to receive the hooked end oi said heddle, said hooked flangeand said contact strip having separate connections to the source ofelectrical energy.

2. In a device of the class described, a heddle frame comprising upperand lower cross bars and connective end pieces lengthwise hooked flangeson the inner edges of said upper and lower cross bars having their inneredges in a lengthwise return bend, a second lengthwise return bend onsaid inner edge of said upper hooked flange, a lengthwise contact stripinserted within said second return bend and insulated and projectingupwardly therefrom, said upper flange and contact strip having separatecon-- nections to the source oi electrical energy, and heddles havinghooked ends to engage over said hooked flanges to drop onto said contactstrip when the thread breaks.

3. In a device of the class described, a heddle frame comprising upperand lower cross bars and connective end pieces, lengthwise hookedflanges inserted in the inner edges of said upper and lower cross bars,heddles having hooked ends to engage over said hooked flanges, a contactstrip on said upper hooked flange insulated and projecting upwardlytherefrom to receive the hooked end of said heddle, said contact stripand said hooked flange having separate connection to the source ofelectrical energy, the inner edge of said lower hooked flange turned onitself to form a tube, the end of said lower flange a spaced distancefrom one of said connective end pieces to permit the insertion of saidheddles onto said flanges. a locking plate inserted through said endlltli filtl piece into saidedge tube, and a latch to hold said lockingplate in position.

"4. In a device of the class described, a heddle frame comprising upperand lower cross bars and connective end pieces,'lengthwise hookedflanges on-the inner edges of said upper and lower, cross bars, heddleshaving hooked ends engaging over said hooked flanges, a contact strip onsaid upper hooked flange insulated therefrom and Inojecting upwardly toreceive the hooked end of, said heddle, saidhooked flange and'saidcontact strip having separate connections to the source of electricalenergy consisting of spaced contact pins on the loom and electricalconnection to said pins, and supporting bars for said heddleframe-between said pins and spring contact wires within said supportingbars to make and break contact with said pins.

5. In a device of the class described, a heddle frame, hooked flanges-onthe oppositeinn'er edges of said frame, heddles having hooked ends toengage over said hooked flanges, a contact strip on the upper hookedflange insulated therefrom, separate connections to the source ofelectrical energy for said upper hooked flange and said contact stripconsisting of. supporting hooks for said heddle frame, supporting barsattached to said supporting hooks and spring contact wires extending outfrom the upper portion of said supporting-bars, spaced contact pins onthe 100111 frame each side of said supporting bars to make andbreakcontact with said'spring contact wires as said su porting bars passupand down between said spaced contact pins, in combination withelectrical knock-off mechanism for the loom, and electrical connectionbetween said pairs of pins 0 and said knock-off mechanism and the sourceof electrical energy. 7

In testimony whereof I have aflixed my signature in the presence of twowitnesses.

- JOHN HANCQ. Witnesses:

H. A. SANDBERG,

HAROLD LORSBERG.

